Yes I understand the difference between measurement and theory, but the scientists are only measuring what they can see. Do you think it's posssible the universe bends at some point, like a road meaning that stars and galaxies go on forever, but we can't detect them? If the universe stops where the last stars we see about 13+ billion light years away, then we must be contained in something would you agree, similar to the gravastar theory?

I don't think that's the case, I think space is eternity. But anything's possible, which is why I'm skeptical of claims like the ones being made in this article. There's too much to know yet before drawing these sorts of conclusions.